The term zero-day is typically used in conjunction with terms such as “vulnerability” or “exploit”.
A zero-day exploit refers to a vulnerability discovered in software for which:
- There is no available remedy; end users have no way to fix or “patch” the vulnerability.
- There is known malware actively exploiting that vulnerability to infect, damage, or otherwise compromise computers on which the vulnerable software is running.
“Zero-day” refers to the amount of time the software authors have to fix the issue: zero. It needs to be resolved immediately.
Any vulnerability that is first discovered by finding malware in the wild that exploits it can be considered “zero-day”.
|Look up zero-day in Wiktionary, the free dictionary.|
Zero day may refer to:
- Zero Day (album), by MC Frontalot
- Zero Day (Baldacci novel), a 2011 thriller novel in the John Puller series
- Zero Day (film), a 2003 American film by Ben Coccio
- Zero-day (computing), a software exploit that is unpatched by the vendor; also known as '0-day'
- Zero-day warez, copyrighted software that is cracked on the same day it is released
- Zero Days, a 2016 documentary film
- Zero Days (album), an album by Prong
- Day Zero, Cape Town water crisis